<div class="list-groups">
    {% for content in data[1] %}
    <div class="list-group col-md-6">
      <table class="table-cv list-group-table">
        <tbody>
          <tr>
            {% if content.icon %}
            <td class="list-group-category-icon"><i class="{{ content.icon }}"></i></td> 
            {% else %}
            <td class="list-group-category-icon"></td>
            {% endif %}
            <!-- Calculate colspan number for category title -->
            {% assign i = 1 %}
            {% for item in content.items %}
              {% assign i = i | plus:1 %}
            {% endfor %}
            <td colspan="{{ i }}" class="list-group-category">{{ content.language }}</td>
          </tr>
          <tr>
            <td></td>
            <td class="list-group-name"><b>{{ content.fluency }}</b></td>
          </tr>
        </tbody>
      </table>
    </div>
    {% endfor %}
  </div>